package thread;
/*
* 线程第一种创建方式:
* 继承Thread并重写run方法
* */
public class ThreadDemo1 {
    public static void main(String[] args) {
        Thread t1 = new MyThread1();
        Thread t2 = new MyThread2();
        t1.start();
        t2.start();
    }
}


class MyThread1 extends Thread{
    public void run(){
        for (int i=0; i <1000 ; i++) {
            System.out.println("你是谁呀！");
        }
    }
}

class MyThread2 extends Thread{
    public void run(){
        for (int i=0; i <1000 ; i++) {
            System.out.println("开门！是我！");
        }
    }
}
